QR decomposition: Difference between revisions

=={{header|Scala}}==

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<lang Scala>import java.io.{PrintWriter, StringWriter}

import Jama.{Matrix, QRDecomposition}

object QRDecomposition extends App {

val matrix =

new Matrix(

Array[Array[Double]](Array(12, -51, 4),

Array(6, 167, -68),

Array(-4, 24, -41)))

val d = new QRDecomposition(matrix)

def toString(m: Matrix): String = {

val sw = new StringWriter

m.print(new PrintWriter(sw, true), 8, 6)

sw.toString

}

print(toString(d.getQ))

print(toString(d.getR))

}</lang>